CN1113956C - Rinsing composition - Google Patents
Rinsing composition Download PDFInfo
- Publication number
- CN1113956C CN1113956C CN97123014A CN97123014A CN1113956C CN 1113956 C CN1113956 C CN 1113956C CN 97123014 A CN97123014 A CN 97123014A CN 97123014 A CN97123014 A CN 97123014A CN 1113956 C CN1113956 C CN 1113956C
- Authority
- CN
- China
- Prior art keywords
- acid
- ammonium
- composition
- hard disk
- chloride
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000203 mixture Substances 0.000 title claims abstract description 22
- 239000000654 additive Substances 0.000 claims abstract description 25
- 230000000996 additive effect Effects 0.000 claims abstract description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- -1 oxo-acid salt Chemical class 0.000 claims abstract description 4
- 238000004140 cleaning Methods 0.000 claims description 44
- 238000003860 storage Methods 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 12
- 239000002253 acid Substances 0.000 claims description 10
- VLTRZXGMWDSKGL-UHFFFAOYSA-N perchloric acid Chemical compound OCl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-N 0.000 claims description 10
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- BNGXYYYYKUGPPF-UHFFFAOYSA-M (3-methylphenyl)methyl-triphenylphosphanium;chloride Chemical group [Cl-].CC1=CC=CC(C[P+](C=2C=CC=CC=2)(C=2C=CC=CC=2)C=2C=CC=CC=2)=C1 BNGXYYYYKUGPPF-UHFFFAOYSA-M 0.000 claims description 6
- VSCWAEJMTAWNJL-UHFFFAOYSA-K aluminium trichloride Chemical group Cl[Al](Cl)Cl VSCWAEJMTAWNJL-UHFFFAOYSA-K 0.000 claims description 6
- APUPEJJSWDHEBO-UHFFFAOYSA-P ammonium molybdate Chemical compound [NH4+].[NH4+].[O-][Mo]([O-])(=O)=O APUPEJJSWDHEBO-UHFFFAOYSA-P 0.000 claims description 5
- 239000011609 ammonium molybdate Substances 0.000 claims description 5
- 229940010552 ammonium molybdate Drugs 0.000 claims description 5
- 235000018660 ammonium molybdate Nutrition 0.000 claims description 5
- NLXLAEXVIDQMFP-UHFFFAOYSA-N Ammonia chloride Chemical compound [NH4+].[Cl-] NLXLAEXVIDQMFP-UHFFFAOYSA-N 0.000 claims description 4
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-N Sulfurous acid Chemical compound OS(O)=O LSNNMFCWUKXFEE-UHFFFAOYSA-N 0.000 claims description 4
- ZCCIPPOKBCJFDN-UHFFFAOYSA-N calcium nitrate Chemical compound [Ca+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ZCCIPPOKBCJFDN-UHFFFAOYSA-N 0.000 claims description 4
- KWGKDLIKAYFUFQ-UHFFFAOYSA-M lithium chloride Chemical compound [Li+].[Cl-] KWGKDLIKAYFUFQ-UHFFFAOYSA-M 0.000 claims description 4
- KBJMLQFLOWQJNF-UHFFFAOYSA-N nickel(ii) nitrate Chemical compound [Ni+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O KBJMLQFLOWQJNF-UHFFFAOYSA-N 0.000 claims description 4
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 claims description 3
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims description 3
- QWPPOHNGKGFGJK-UHFFFAOYSA-N hypochlorous acid Chemical compound ClO QWPPOHNGKGFGJK-UHFFFAOYSA-N 0.000 claims description 3
- 150000004968 peroxymonosulfuric acids Chemical class 0.000 claims description 3
- SUKJFIGYRHOWBL-UHFFFAOYSA-N sodium hypochlorite Chemical compound [Na+].Cl[O-] SUKJFIGYRHOWBL-UHFFFAOYSA-N 0.000 claims description 3
- LCPVQAHEFVXVKT-UHFFFAOYSA-N 2-(2,4-difluorophenoxy)pyridin-3-amine Chemical compound NC1=CC=CN=C1OC1=CC=C(F)C=C1F LCPVQAHEFVXVKT-UHFFFAOYSA-N 0.000 claims description 2
- 239000004160 Ammonium persulphate Substances 0.000 claims description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- PQUCIEFHOVEZAU-UHFFFAOYSA-N Diammonium sulfite Chemical compound [NH4+].[NH4+].[O-]S([O-])=O PQUCIEFHOVEZAU-UHFFFAOYSA-N 0.000 claims description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 claims description 2
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 claims description 2
- 239000004159 Potassium persulphate Substances 0.000 claims description 2
- DPDMMXDBJGCCQC-UHFFFAOYSA-N [Na].[Cl] Chemical compound [Na].[Cl] DPDMMXDBJGCCQC-UHFFFAOYSA-N 0.000 claims description 2
- 235000019270 ammonium chloride Nutrition 0.000 claims description 2
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 2
- 235000019395 ammonium persulphate Nutrition 0.000 claims description 2
- BFNBIHQBYMNNAN-UHFFFAOYSA-N ammonium sulfate Chemical compound N.N.OS(O)(=O)=O BFNBIHQBYMNNAN-UHFFFAOYSA-N 0.000 claims description 2
- 229910052921 ammonium sulfate Inorganic materials 0.000 claims description 2
- 235000011130 ammonium sulphate Nutrition 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- BIOOACNPATUQFW-UHFFFAOYSA-N calcium;dioxido(dioxo)molybdenum Chemical compound [Ca+2].[O-][Mo]([O-])(=O)=O BIOOACNPATUQFW-UHFFFAOYSA-N 0.000 claims description 2
- AXZAYXJCENRGIM-UHFFFAOYSA-J dipotassium;tetrabromoplatinum(2-) Chemical compound [K+].[K+].[Br-].[Br-].[Br-].[Br-].[Pt+2] AXZAYXJCENRGIM-UHFFFAOYSA-J 0.000 claims description 2
- VLAPMBHFAWRUQP-UHFFFAOYSA-L molybdic acid Chemical compound O[Mo](O)(=O)=O VLAPMBHFAWRUQP-UHFFFAOYSA-L 0.000 claims description 2
- 150000002815 nickel Chemical class 0.000 claims description 2
- QMMRZOWCJAIUJA-UHFFFAOYSA-L nickel dichloride Chemical compound Cl[Ni]Cl QMMRZOWCJAIUJA-UHFFFAOYSA-L 0.000 claims description 2
- 229910017604 nitric acid Inorganic materials 0.000 claims description 2
- SATVIFGJTRRDQU-UHFFFAOYSA-N potassium hypochlorite Chemical compound [K+].Cl[O-] SATVIFGJTRRDQU-UHFFFAOYSA-N 0.000 claims description 2
- 229910001487 potassium perchlorate Inorganic materials 0.000 claims description 2
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 2
- 235000019394 potassium persulphate Nutrition 0.000 claims description 2
- 238000010926 purge Methods 0.000 claims description 2
- TVXXNOYZHKPKGW-UHFFFAOYSA-N sodium molybdate (anhydrous) Chemical compound [Na+].[Na+].[O-][Mo]([O-])(=O)=O TVXXNOYZHKPKGW-UHFFFAOYSA-N 0.000 claims description 2
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 claims description 2
- 229910001488 sodium perchlorate Inorganic materials 0.000 claims description 2
- CHQMHPLRPQMAMX-UHFFFAOYSA-L sodium persulfate Substances [Na+].[Na+].[O-]S(=O)(=O)OOS([O-])(=O)=O CHQMHPLRPQMAMX-UHFFFAOYSA-L 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 abstract 1
- 150000004715 keto acids Chemical class 0.000 abstract 1
- 239000000758 substrate Substances 0.000 description 32
- 238000005498 polishing Methods 0.000 description 25
- 239000002002 slurry Substances 0.000 description 15
- 229910018104 Ni-P Inorganic materials 0.000 description 11
- 229910018536 Ni—P Inorganic materials 0.000 description 11
- 239000002245 particle Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 150000003839 salts Chemical class 0.000 description 5
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- WQYVRQLZKVEZGA-UHFFFAOYSA-N hypochlorite Chemical compound Cl[O-] WQYVRQLZKVEZGA-UHFFFAOYSA-N 0.000 description 4
- 238000007747 plating Methods 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 3
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 3
- 239000013543 active substance Substances 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 238000002360 preparation method Methods 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- 239000004411 aluminium Substances 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- NLSCHDZTHVNDCP-UHFFFAOYSA-N caesium nitrate Chemical compound [Cs+].[O-][N+]([O-])=O NLSCHDZTHVNDCP-UHFFFAOYSA-N 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000014509 gene expression Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- IIPYXGDZVMZOAP-UHFFFAOYSA-N lithium nitrate Chemical compound [Li+].[O-][N+]([O-])=O IIPYXGDZVMZOAP-UHFFFAOYSA-N 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 description 2
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate group Chemical group [N+](=O)([O-])[O-] NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 2
- VLTRZXGMWDSKGL-UHFFFAOYSA-M perchlorate Inorganic materials [O-]Cl(=O)(=O)=O VLTRZXGMWDSKGL-UHFFFAOYSA-M 0.000 description 2
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 description 2
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 2
- BDERNNFJNOPAEC-UHFFFAOYSA-N propan-1-ol Chemical compound CCCO BDERNNFJNOPAEC-UHFFFAOYSA-N 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Chemical compound [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-L sulfite Chemical compound [O-]S([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-L 0.000 description 2
- 239000004408 titanium dioxide Substances 0.000 description 2
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002134 Carboxymethyl cellulose Polymers 0.000 description 1
- 208000006558 Dental Calculus Diseases 0.000 description 1
- UFWIBTONFRDIAS-UHFFFAOYSA-N Naphthalene Chemical compound C1=CC=CC2=CC=CC=C21 UFWIBTONFRDIAS-UHFFFAOYSA-N 0.000 description 1
- 229910003271 Ni-Fe Inorganic materials 0.000 description 1
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical compound [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 description 1
- 239000003082 abrasive agent Substances 0.000 description 1
- 206010000496 acne Diseases 0.000 description 1
- SWCIQHXIXUMHKA-UHFFFAOYSA-N aluminum;trinitrate;nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Al+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O SWCIQHXIXUMHKA-UHFFFAOYSA-N 0.000 description 1
- 239000012378 ammonium molybdate tetrahydrate Substances 0.000 description 1
- FIXLYHHVMHXSCP-UHFFFAOYSA-H azane;dihydroxy(dioxo)molybdenum;trioxomolybdenum;tetrahydrate Chemical compound N.N.N.N.N.N.O.O.O.O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O=[Mo](=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O.O[Mo](O)(=O)=O FIXLYHHVMHXSCP-UHFFFAOYSA-H 0.000 description 1
- 229940077388 benzenesulfonate Drugs 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000001768 carboxy methyl cellulose Substances 0.000 description 1
- 235000010948 carboxy methyl cellulose Nutrition 0.000 description 1
- 239000008112 carboxymethyl-cellulose Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000084 colloidal system Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 238000009713 electroplating Methods 0.000 description 1
- 239000003995 emulsifying agent Substances 0.000 description 1
- 238000007730 finishing process Methods 0.000 description 1
- 239000005350 fused silica glass Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000007373 indentation Methods 0.000 description 1
- 229920005610 lignin Polymers 0.000 description 1
- 229940031815 mycocide Drugs 0.000 description 1
- 229920000058 polyacrylate Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000010333 potassium nitrate Nutrition 0.000 description 1
- 239000004323 potassium nitrate Substances 0.000 description 1
- BHZRJJOHZFYXTO-UHFFFAOYSA-L potassium sulfite Chemical compound [K+].[K+].[O-]S([O-])=O BHZRJJOHZFYXTO-UHFFFAOYSA-L 0.000 description 1
- 235000019252 potassium sulphite Nutrition 0.000 description 1
- 230000002000 scavenging effect Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229960001866 silicon dioxide Drugs 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 235000010344 sodium nitrate Nutrition 0.000 description 1
- 239000004317 sodium nitrate Substances 0.000 description 1
- 229940001516 sodium nitrate Drugs 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- YFGAFXCSLUUJRG-WCCKRBBISA-M sodium;(2s)-2-amino-5-(diaminomethylideneamino)pentanoate Chemical compound [Na+].[O-]C(=O)[C@@H](N)CCCN=C(N)N YFGAFXCSLUUJRG-WCCKRBBISA-M 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 238000001132 ultrasonic dispersion Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
- G11B23/50—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges
- G11B23/505—Reconditioning of record carriers; Cleaning of record carriers ; Carrying-off electrostatic charges of disk carriers
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
- C11D7/08—Acids
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
- C11D7/10—Salts
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/02—Inorganic compounds
- C11D7/04—Water-soluble compounds
- C11D7/10—Salts
- C11D7/105—Nitrates; Nitrites
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D7/00—Compositions of detergents based essentially on non-surface-active compounds
- C11D7/50—Solvents
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02041—Cleaning
-
- C—CHEMISTRY; METALLURGY
- C11—ANIMAL OR VEGETABLE OILS, FATS, FATTY SUBSTANCES OR WAXES; FATTY ACIDS THEREFROM; DETERGENTS; CANDLES
- C11D—DETERGENT COMPOSITIONS; USE OF SINGLE SUBSTANCES AS DETERGENTS; SOAP OR SOAP-MAKING; RESIN SOAPS; RECOVERY OF GLYCEROL
- C11D2111/00—Cleaning compositions characterised by the objects to be cleaned; Cleaning compositions characterised by non-standard cleaning or washing processes
- C11D2111/10—Objects to be cleaned
- C11D2111/14—Hard surfaces
- C11D2111/22—Electronic devices, e.g. PCBs or semiconductors
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Detergent Compositions (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
A composition for rinsing a memory hard disc, which comprises water and an additive selected from the group consisting of an oxo-acid, an oxo-acid salt and a chloride.
Description
The present invention relates in the storage hard disk manufacture process of Computer Memory Unit being suitable for use as the cleaning combination of finishing after the surface finish of storage hard disk (substrate of disk).More particularly, the present invention relates to coil at Ni-P, form in the finishing process after Ni-Fe dish, aluminium dish, norbide dish or carbon dish and so on storage hard disk polishing and the texture processing (texturing) cleaning combination of fabulous treat surface.These storage hard disks can be used for the storage hard disk of the disk set that the manufacturing capacity is big, recording density is high.
In recent years, the size of storage hard disk (as one of storage media of computer) that is used for disk set is more and more littler, and capacity is increasing, and magneticmedium also becomes the thin film dielectrics that forms with sputtering method or electrochemical plating etc. by the application type of routine.
The most frequently used magnetic disk substrate (hereinafter being called " substrate ") is to have the magnetic disk substrate that is coated in the non-electric Ni-P coating on the aluminium substrate at present.This magnetic disk substrate polishes with the polishing composition (hereinafter being called " slurry " according to its character) that contains aluminum oxide, various other polishing material, water and various polishing promotor after plating usually.In many cases, the substrate surface after polishing may form the tiny thrust (hereinafter being called " miniature thrust ") that size is no more than 50 microns usually.Again the adhesion of the Ni-P coating smear metal that the reason that forms miniature thrust grinds away when for example being polishing, form burr during polishing material friction Ni-P surface, or the abrasive particle in the paste compound is deposited on the substrate surface, and this its degree of difference of looking slurry types changes to some extent.
In addition, for the magnetic head that prevents recorded information be stuck in the storage hard disk in, can carry out so-called texture processing, so as after the polishing on substrate indentation.In this texture processing process, also may form miniature thrust owing to the bonding again of Ni-P coating smear metal or because the friction of the middle abrasive particle of texture processing composition (hereinafter being called " slurry " as polishing composition) forms burr.
On the other hand, along with the trend of storage hard disk heavy body, recording density every year, the speed with tens percent improved.Therefore, recent disk set need reduce the flying height of magnetic head as far as possible, i.e. space between magnetic head and storage hard disk.The flying height of magnetic head has been reduced to and has been at most 0.15 micron at present.
In addition, in order further to reduce the flying height of magnetic head, proposed to carry out the light texture processing recently,, or used the no texture substrate that does not have the trace line without texture processing with the thinner trace line of formation on substrate.Therefore, the magnetic head that so-called flying height is more and more lower advances.
In a word, require very low magnetic head flight height.Therefore, if the storage harddisk surface has several microns high miniature thrust, magnetic head probably with substrate surface on these miniature thrusts bump, so-called " magnetic head breaks " promptly may take place, thereby damage the magneticmedium on storage harddisk surface or the magnetic head probably, this causes the damage of disk set again.In addition, even the more pimple thing that can not cause magnetic head to break also may make it cause the read-write mistake of information owing to the turbulent flow of thrust place magnetic.Therefore, in polishing and texture processing step, prepare promptly that to prevent to form miniature thrust in the above-mentioned steps of magneticmedium be very important, the while must be removed the miniature thrust of formation fully.
In order to remove these miniature thrusts, after the polishing in making the substrate method substrate is cleaned usually.Clean mainly is the substrate surface of staying after the polishing of lip-deep smear metal and abrasive particle cleaning by removing.
On the other hand, if to substrate polish with texture processing after used slurry (hereinafter be called " useless slurry ") be deposited on the substrate surface after drying, these slurries are removed in the cleaning step afterwards fully, therefore, form miniature thrust probably.In addition, if will polish and texture processing after directly put into washing unit by the substrate of slurry contamination, then washing unit may transship.In addition, stay health or clothes that on-chip waste liquid may contact the staff, or pollute the working space, thereby pollute Working environment.Avoiding these problems also is that the purpose of clean is carried out in polishing and texture processing mera.
For above-mentioned purpose, generally be now after texture processing, to replace slurry, and under low pressure in identical device, substrate carried out the clean of short period of time with pure water or the cleaning combination that contains tensio-active agent.Yet, there are the following problems when cleaning with this pure water or cleaning combination, form miniature thrust probably, can not prevent to form miniature thrust fully, used tensio-active agent can not be removed fully by cleaning subsequently, and may stay on the substrate, may form miniature thrust other surface imperfection in addition, as scratch or depression.
The objective of the invention is to address the above problem, and the cleaning combination that can remove miniature thrust is provided.As at present to the cleaning combination that is used to clean substrate desired, can obtain the fabulous substrate surface that does not only have miniature thrust but also do not have other surface imperfection (as scratch or depression) with this cleaning combination.Simultaneously, this cleaning combination can prevent that abrasive particle deposit from slurry from coming out, and reduces the load to washing unit, and improves Working environment.
The invention provides the cleaning combination of class storage hard disk, it contains water and is selected from oxygen acid, oxysalt and muriatic additive.
The present invention also provides the purposes of this composition as storage hard disk clean-out system.
The present invention also provides a kind of purging method of storing hard disk, in this method this composition is used as clean-out system.
Cleaning combination of the present invention can be removed the miniature thrust that forms in the storage hand disk wafer manufacturing processed, and can obtain the fabulous substrate surface that not only do not have miniature thrust but also do not have other surface imperfection (as scratch or depression).In addition, cleaning combination of the present invention can prevent effectively that abrasive particle deposit from slurry from coming out, thereby reduces the load of washing unit and improve Working environment.
Referring now to preferred embodiment the present invention is described in detail.
Additive
Only otherwise damage effect of the present invention, oxysalt or the muriatic type used to cleaning combination of the present invention just have no particular limits.Yet oxysalt better is selected from nitrate, molybdate, vitriol, perchlorate, hypochlorite, persulphate, sulphite.
These oxysalts or muriate better are selected from following compound.
(1) nitrate
Aluminum nitrate, nickelous nitrate, ammonium nitrate, saltpetre, nitrocalcite, Xiao Suangu, cesium nitrate, SODIUMNITRATE and lithium nitrate.
(2) molybdate
Ammonium molybdate, calcium molybdate and Sodium orthomolybdate.
(3) vitriol
Tai-Ace S 150, ammonium sulfate, vitriolate of tartar, sodium sulfate, single nickel salt and sal epsom.
(4) perchlorate
Sodium perchlorate and potassium perchlorate.
(5) hypochlorite
Clorox and potassium hypochlorite.
(6) persulphate
Sodium Persulfate, Potassium Persulphate and ammonium persulphate.
(7) sulphite
S-WAT, potassium sulfite and ammonium sulphite.
(8) muriate
Aluminum chloride, ammonium chloride, Repone K, calcium chloride, nickelous chloride, sodium-chlor and lithium chloride.
These compounds are expressed as single salt respectively, but they can be higher-order compounds also, as double salt.In addition, these salt can be anhydrous salt or the salt that contains crystal water.
Only otherwise damage effect of the present invention, the oxygen acid used to cleaning combination of the present invention has no particular limits.Yet described oxygen acid better is selected from perchloric acid, hypochlorous acid, persulfuric acid, sulfurous acid, sulfuric acid, nitric acid and molybdic acid, better is selected from perchloric acid, hypochlorous acid, persulfuric acid and sulfurous acid.
These oxysalts, muriate or oxygen acid (hereinafter being commonly referred to as " additive ") can use separately or be used in combination as mixture.For example, additive better is the mixture of oxygen acid and oxysalt.Particularly preferred additive is the mixture of aluminum nitrate, ammonium molybdate or aluminum nitrate and ammonium molybdate.
The intensity that this content of additive is looked the additive effect in the cleaning combination changes, but is preferably 0.001-50% weight, and 0.01-30% weight more preferably is by the total amount of cleaning combination.Generally when the consumption of additive increased, effect of the present invention can be stronger.Then, if when consumption is too big, unfavorable meeting economically surpasses the raising of effect.The consumption of water is preferably 50-99.999% weight, and 70-99.99% weight more preferably is by the total amount of cleaning combination.
The pH of cleaning combination of the present invention better is at most 7.Use the pH of the cleaning combination of above-mentioned additive to be at most 7 usually.Yet, if when pH changes, for example add various supplementary additives and make pH greater than 7 o'clock, should be with pH regulator to the value that is at most 7.In this case, should regulate with above-mentioned oxygen acid.
The detailed mechanism that can remove miniature thrust as the substrate clean-out system with cleaning combination of the present invention is not expressly understood.But electroplating substrate with Ni-P is example, and this mechanism is made description below.
The inventor thinks that additive of the present invention makes the surface of Ni-P plating that chemical transformation take place, make that being deposited on the burr that is formed by the abrasive material friction in the polishing lip-deep Ni-P smear metal of mera and polishing and the texture processing process becomes fragile, thereby when cleaning, remove easily with the polishing pad that contains cleaning combination of the present invention.Can imagine that also variation has taken place the surface chemical property of Ni-P plating, make that abrasive particle in Ni-P smear metal and the slurry is difficult to be deposited in again above.
Cleaning combination
The manufacture method of cleaning combination of the present invention generally is the above-mentioned additive of weighing predetermined amount, then with its mixing be dissolved in the water.The method that this additive is dissolved in the water is chosen wantonly, for example can be the method for dissolving these additives with the blade agitators stirring method, with ultrasonic dispersion, or the like.
In preparation during cleaning combination of the present invention,, can use various known supplementary additives in order to keep or the quality of stable cleaning combination of the present invention or according to cleaning condition or other processing requirement.
The example of these supplementary additives comprises:
(a) Mierocrystalline cellulose is as Mierocrystalline cellulose, carboxymethyl cellulose, Natvosol etc.
(b) water-soluble alcohol is as ethanol, propyl alcohol, ethylene glycol etc.
(c) tensio-active agent is as formaldehyde condensation products of sodium alkyl benzene sulfonate, naphthene sulfonic acid etc.
(d) organic polyanionic material, as Sulfite lignin,, polyacrylate etc.
(e) water-soluble polymers (emulsifying agent) is as polyvinyl alcohol etc.
(f) silicon-dioxide is as colloid silica, fused silica etc.
(g) titanium oxide, as titanium dioxide, fusion titanium dioxide etc.
(h) zirconium white is as fused zirconia etc.
(i) aluminum oxide is as alumina sol, fused alumina etc.
(j) mycocide is as Sodium L-arginate, saleratus etc.
When making cleaning combination of the present invention, only otherwise damage effect of the present invention, to the blending means of additive with mix order and have no particular limits.
In addition, cleaning combination of the present invention can be made the higher material solution of concentration, thereby can this form store or transport, and dilutes when carrying out actual cleaning operation then.The concentration range of above-mentioned recommendation is the concentration range of cleaning combination when carrying out the practical situation operation.When the present composition was made this material solution, yes is and stores or the high concentration liquid of travel position for it.
For a more detailed description referring now to embodiment to cleaning combination of the present invention, but should think that never the present invention is subjected to the restriction of these specific embodiments.
Embodiment 1-8 and Comparative Examples 1 and 2
The preparation cleaning combination
Additive listed in the 10 gram tables 1 is joined respectively in 1 liter of pure water, be distributed to agitator in the water of predetermined amount, make cleaning combination used among the embodiment 1-8.
Polishing substrate
Under the following conditions substrate is polished.The slurry that will contain 20% weight aluminum oxide and 1% weight (by slurry weight) oxysuccinic acid with pure water dilutes three times, compositions for use during the preparation polishing.
Polishing condition
Workpiece: 3.5 " Ni-P substrate
Number pieces: 10 dishes
Polishing machine: 9B type Twp-sided polishing machine
Pressure: 80 gram per centimeters
3
Platform rotating speed: 60 rev/mins
Slurry adds speed: 100 millimeters/minute
Polishing time: 5 minutes
Washing test
After finishing above-mentioned polishing, make following condition immediately into.And carry out the washing test of embodiment 1-8.
The situation of clean is not carried out in Comparative Examples 1 expression, the Comparative Examples 2 expressions situation of pure water as clean-out system.
Cleaning condition
Pressure: 40 gram per centimeters
3
Platform rotating speed: 30 rev/mins
Cleaning combination adds fast 300 ml/min
Degree:
Scavenging period: 30 seconds
After finishing clean, with ordinary method substrate is washed successively and drying, use differential interference microscope (magnification: 400 times) to count the miniature thrust that exists on the substrate surface in each field of microscope district then.To carrying out microscopic examination in 10 field of vision, calculate mean number, and with it as miniature thrust number (individual/district).The results are shown in Table 1 for gained.
Table 1
| Additive | Miniature thrust (individual/field of vision) | Scratch | Depression | |
| Embodiment 1 | ANN aluminium nitrate nonahydrate | 2 | ○ | ○ |
| Embodiment 2 | Ammonium nitrate | 0 | ○ | ○ |
| Embodiment 3 | Ammonium Molybdate Tetrahydrate | 0 | ○ | ○ |
| Embodiment 4 | S-WAT | 5 | ○ | ○ |
| Embodiment 5 | Tai-Ace S 150 | 7 | ○ | ○ |
| Embodiment 6 | Aluminum chloride | 10 | ○ | ○ |
| Embodiment 7 | Clorox | 0 | ○ | ○ |
| Embodiment 8 | Perchloric acid | 2 | ○ | ○ |
| Comparative Examples 1 | (only polishing is not promptly cleaned) | 100 | ○ | × |
| Comparative Examples 2 | Only clean with pure water | 75 | × | ○ |
Zero: do not observe
*: observe
Result from table 1 as can be known, cleaning combination of the present invention can be removed the miniature thrust that polishing forms the time on substrate surface.In addition, when using cleaning combination of the present invention, do not observe scratch and depression.
As mentioned above, cleaning combination of the present invention can be removed the miniature thrust that forms in the storage hand disk wafer manufacturing processed, can obtain the fabulous substrate surface that not only do not have miniature thrust but also do not have other surface imperfection with it, and can prevent effectively that abrasive particle deposit from slurry from coming out, minimizing is to the load of washing unit and improve Working environment.Therefore, it can reach in recent years to heavy body, the desired processing quality of high record density storage hard disk.
Claims (7)
1. store the cleaning combination of hard disk, it is characterized in that it contains water and be selected from oxygen acid, oxysalt and muriatic additive, described oxygen acid is selected from perchloric acid, hypochlorous acid, persulfuric acid, sulfurous acid, sulfuric acid, nitric acid and molybdic acid, described oxysalt is selected from aluminum nitrate, nickelous nitrate, ammonium nitrate, nitrocalcite, Xiao Suangu, ammonium aluminate, calcium molybdate, Sodium orthomolybdate, Tai-Ace S 150, ammonium sulfate, single nickel salt, sal epsom, sodium perchlorate, potassium perchlorate, clorox, potassium hypochlorite, Sodium Persulfate, Potassium Persulphate, ammonium persulphate, ammonium sulphite, described muriate is selected from aluminum chloride, ammonium chloride, Repone K, calcium chloride, nickelous chloride, sodium-chlor and lithium chloride, the consumption of described additive is a 0.001-50% weight, by the weight of composition.
2. composition as claimed in claim 1, its feature are that also described additive is the mixture of oxygen acid and oxysalt.
3. composition as claimed in claim 1, its feature are that also described additive is an aluminum nitrate.
4. composition as claimed in claim 1, its feature are that also described additive is an ammonium molybdate.
5. composition as claimed in claim 1, its feature are that also described additive is the mixture of aluminum nitrate and ammonium molybdate.
According to claim 1 composition as the application of storage hard disk clean-out system.
7. the purging method of storage hard disk is characterized in that the clean-out system of composition as claimed in claim 1 as the storage hard disk.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP314707/1996 | 1996-11-26 | ||
| JP31470796A JP4141514B2 (en) | 1996-11-26 | 1996-11-26 | Rinse composition |
| JP314707/96 | 1996-11-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1183467A CN1183467A (en) | 1998-06-03 |
| CN1113956C true CN1113956C (en) | 2003-07-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97123014A Expired - Lifetime CN1113956C (en) | 1996-11-26 | 1997-11-26 | Rinsing composition |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US6022837A (en) |
| JP (1) | JP4141514B2 (en) |
| KR (1) | KR19980042793A (en) |
| CN (1) | CN1113956C (en) |
| GB (1) | GB2319529B (en) |
| IE (1) | IE970831A1 (en) |
| MY (1) | MY115703A (en) |
| TW (1) | TW442559B (en) |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6475407B2 (en) * | 1998-05-19 | 2002-11-05 | Showa Denko K.K. | Composition for polishing metal on semiconductor wafer and method of using same |
| SG78405A1 (en) * | 1998-11-17 | 2001-02-20 | Fujimi Inc | Polishing composition and rinsing composition |
| US6352595B1 (en) * | 1999-05-28 | 2002-03-05 | Lam Research Corporation | Method and system for cleaning a chemical mechanical polishing pad |
| US6221119B1 (en) * | 1999-07-14 | 2001-04-24 | Komag, Inc. | Slurry composition for polishing a glass ceramic substrate |
| US6461227B1 (en) * | 2000-10-17 | 2002-10-08 | Cabot Microelectronics Corporation | Method of polishing a memory or rigid disk with an ammonia-and/or halide-containing composition |
| TWI229324B (en) * | 2002-05-09 | 2005-03-11 | Maxtor Corp | Method of simultaneous two-disk processing of single-sided magnetic recording disks |
| US8172954B2 (en) * | 2002-10-10 | 2012-05-08 | Seagate Technology Llc | Apparatus for simultaneous two-disk scrubbing and washing |
| ES2231016B1 (en) * | 2003-10-22 | 2007-03-01 | Servalesa, S.L. | PROCEDURE FOR OBTAINING A FUNGICIDE AND ACARICIDE SELF-DEFENSE LIQUID FROM PLANTS. |
| MY145938A (en) * | 2007-02-14 | 2012-05-31 | Avantor Performance Mat Inc | Peroxide activated oxometalate based formulations for removal of etch residue |
| JP4891304B2 (en) * | 2008-10-23 | 2012-03-07 | 花王株式会社 | Manufacturing method of memory hard disk substrate |
| JP5376934B2 (en) * | 2008-12-26 | 2013-12-25 | 花王株式会社 | Rinse agent composition for magnetic disk substrate |
| JP5795843B2 (en) | 2010-07-26 | 2015-10-14 | 東洋鋼鈑株式会社 | Manufacturing method of hard disk substrate |
| CN102418137B (en) * | 2011-12-16 | 2014-06-18 | 沈阳黎明航空发动机(集团)有限责任公司 | Alloy electrochemical mark-printing liquid |
| SG11201405080XA (en) * | 2012-02-29 | 2014-11-27 | Hoya Corp | Method for manufacturing magnetic-disk glass substrate and method for manufacturing magnetic disk |
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| US3864461A (en) * | 1972-08-29 | 1975-02-04 | Laporte Industries Ltd | Process for the production of alumina |
| JPS5332343B2 (en) * | 1972-09-19 | 1978-09-07 | ||
| NL175835B (en) * | 1973-04-17 | 1984-08-01 | Shell Int Research | Process for preparing a hydrogen-rich gas from a carbon monoxide-containing gas using a nickel and / or cobalt and molybdenum-containing catalyst. |
| JPS5242552B2 (en) * | 1974-08-01 | 1977-10-25 | ||
| US4145316A (en) * | 1977-12-27 | 1979-03-20 | Exxon Research & Engineering Co. | Preparation of catalysts of predetermined pore size distribution and pore volume |
| US4278440A (en) * | 1980-02-04 | 1981-07-14 | Union Carbide Corporation | Reagent and method for direct determination of chloride in serum |
| US4490483A (en) * | 1983-05-19 | 1984-12-25 | Gulf Research & Development Company | Process for preparing catalysts |
| US4767704A (en) * | 1983-10-07 | 1988-08-30 | Columbia University In The City Of New York | Protein-free culture medium |
| JPS61278587A (en) * | 1985-06-04 | 1986-12-09 | Fujimi Kenmazai Kogyo Kk | Polishing composition |
| IT1203587B (en) * | 1985-06-13 | 1989-02-15 | Montedison Spa | PROCEDURE FOR THE PREPARATION OF O-NITRO BENZALDEHYDE |
| US4769046A (en) * | 1985-07-25 | 1988-09-06 | Fujimi Kanmazai Kogyo Kabushiki Kaisha Of Japan | Process for polishing surface of memory hard disc |
| DE68927116T2 (en) * | 1988-01-19 | 1997-02-06 | Fujimi Inc | Polishing compound |
| JP2631712B2 (en) * | 1988-08-18 | 1997-07-16 | コスモ石油株式会社 | Catalyst composition for hydrotreating heavy hydrocarbon oil and hydrotreating method using the same |
| JPH0781132B2 (en) * | 1990-08-29 | 1995-08-30 | 株式会社フジミインコーポレーテッド | Abrasive composition |
| JPH0781133B2 (en) * | 1992-05-06 | 1995-08-30 | 株式会社フジミインコーポレーテッド | Composition for polishing memory hard disk |
| US5565091A (en) * | 1993-02-15 | 1996-10-15 | Idemitsu Kosan Co., Ltd. | Catalyst composition manufacturing method and sulfur-containing hydrocarbon hydrodesulfurization method using the same catalyst composition |
| US5441630A (en) * | 1993-04-12 | 1995-08-15 | Texaco, Inc. | Hydrodesulfurization process |
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-
1996
- 1996-11-26 JP JP31470796A patent/JP4141514B2/en not_active Expired - Lifetime
-
1997
- 1997-11-15 MY MYPI97005489A patent/MY115703A/en unknown
- 1997-11-17 TW TW086117148A patent/TW442559B/en not_active IP Right Cessation
- 1997-11-17 US US08/972,142 patent/US6022837A/en not_active Expired - Fee Related
- 1997-11-26 CN CN97123014A patent/CN1113956C/en not_active Expired - Lifetime
- 1997-11-26 KR KR1019970063227A patent/KR19980042793A/en not_active Application Discontinuation
- 1997-11-26 IE IE19970831A patent/IE970831A1/en unknown
- 1997-11-26 GB GB9725012A patent/GB2319529B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| GB2319529B (en) | 1999-02-17 |
| CN1183467A (en) | 1998-06-03 |
| GB2319529A8 (en) | 1998-08-06 |
| IE970831A1 (en) | 2000-02-09 |
| MY115703A (en) | 2003-08-30 |
| GB9725012D0 (en) | 1998-01-28 |
| JP4141514B2 (en) | 2008-08-27 |
| US6022837A (en) | 2000-02-08 |
| GB2319529A (en) | 1998-05-27 |
| KR19980042793A (en) | 1998-08-17 |
| JPH10152674A (en) | 1998-06-09 |
| TW442559B (en) | 2001-06-23 |
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